Water insoluble azodyestuffs



Patented May 17, 1932 UNITED STATES PATENT OFFICE-"1 LEOPOLD LASKA AND ARTHUR ZITSCHER, 0F OFFENBAGH-ON-THE-MAIN, GERMANY;

' --ASSIGNORS TO GENERAL ANILINE WORKS, INC., 015 NEW YORK,

T'ION OF DELAWARE WATER INSOLUBLE AZODYESTUFFS No Drawing. Application filed July 17, 1929, Serial No. 375,061, and in Germany July 25*, 1928.

Ourcopending application Serial No, 379,- 060, filed July 17, 1929, relates to new azodyestuffs corresponding probably to the general formula? V l on 1 l o o-NIPOOfl Y V l $0113 ofa very good'fastnessto light and kier boi1- wherein arylhas the aforesaid signification, of which dyestuffs the following are illustrative examples. The parts areby weight and all temperatures in Centigrade degrees; but we wish it to be understood that we are not limited to the particular products nor reaction conditions mentioned in theexamples.

Example 1 v 14,2 parts of -chloro-Q-toluidine are diazotized in the usual manner and the diazosolution is combined with a solution of 32,2 parts of 2.3 hydroxynaphthoyl-4 an1ino-2 sponds probably to the formula:

methyl-l-methoxybenz'ene a dilute caustic soda solution,'t0 which Turkey red oil and an amount of sodium acetate suflieient for bind ing the excess of mineral acid are. added.

The separated dyestuff is filtered off and Well washed. When mixed wjith the usual sub st ata it. yields clear red c l r lak ot a ery good" fastn'ess to light. The dyestufl Example 2 droxynaphthoylA-amino 2emethyl 1 met oxybenzene,

diazosolution, which contains: 1,21 gr-s. of

meta-Xylidine and is neutralized with sodi- .umbicarbonate, rinsed and so'a-ped while boiling. In this manner a clear red dyeing ing is obtained. The dyestufi thus produced on the fiber corresponds probably tothe formula: v

The following table gives the shades of some other dyestufi's derived from 2.3-hyn. Y.,' .A CORPORA- 14: cos. of a caustic soda solution of 34 Be. and 10 com. of Turkey red oil in the liter, well wrung out and developed witha a I Gotton'yarn well boiled and dried is im pregnated with a solution of 7 gr's. of 2.3-h ydroxyn aphthoyl 4 amino 2 methyl-l-methoxybenzene Diazocompound of Shade Obtained m-chloroaniline 5-ch1oro-2-toluidine 4-cl1loro-2-anisidine 5-bromo-2-to1uirline 4-bromo-2-toluidine 3-amino-4-chloro-acetophenone 3.5dichlor0aniline 2.5-dichloroaniline 2.4.5-trichloroaniline Z-amino-4-chlorodiphenylether 3-amino-4.G-clichlorotoluene 3-a1nino-4.5-dichlorotoluene o-nitroanlline 3-nltroaniline 4-chlor0-2-nltr0aniline 5-chlor0-2-nitr0aniline 2-chloro-4-nitroaniline 3-amino-4-chloro-G-benzoylarninotoluene 3-nitro-4-toluidine 5-nitro-2-toluidine 5-nitro-2-anisidine 3nitro-4-anisidine. l-aminOanthraquino-ne 1-amino-4-cl1l0ro-anthraquinone 1-amino-5 chloroanthraquinone 1-amin0-4-benzoylamino-anthraquinone 1 amin0 5-benzoylamino-anthraquinoue 4-amino-2.3-dichloro-5L6-dimetl1oxyazobenzene 4-amino-4-nitro-2.5-dimethoxyazobenzene p 2-phenetol-azo-a-naphthylamine Scarlet red Clear red Claret Scarlet Yellowish red Yellowish red Reddlsh brown Brownish'red Claret Clear red Full claret Rcddish brown Reddish brown Orange brown Bluishclaret Claret Claret Red ' 1 Bluish claret Claret 'BllllSll claret Bluish garnet Full yellowish red Bluish claret Claret Full garnet Brownisli claret Dark bluish red Bluish black Rcddish black A Derived from 2.3-hydroxynaphthoyl-4 amino-2-methyl-l ethoxy-benzene:

Diazocompound of Shade obtained 2.5-dicl1loroaniline 5-nitro-2-toluidine 3-nitro-4-toluidine 5-nitro-2 anisi(line Orange brown Claret Claret Garnet Brownish claret black dyeings fastto l-amino-anthraquinone sponding probably to the general formula:

, oo-rrnOo-nrn wherein aryl represents the residue of an aromatic diazotizable aminocompound, which dyestufi's yield when mixed with the usual substrata valuable'orange to red to blue to black color lakes and orange to red to blue to blackdyeings fast to light when produced on thefiber. I

2. As new compounds azodyestuflfs corresponding probably to the general formula:

wherein aryl represents the residue of an arcmatic diazotizable aminocompound, which dyestuffs yield when mixed with the usual substrata valuable orange to red to blue to black color lakes and orange to red: to blue to light ,when produced 8( on the fiber. I V V 3. As new compounds azodyestull's corresponding probably to the general formula:

wherein X means analkyl, alkoxy, aryloxy or nitro group or a halogenatom and this benzene nucleus may contain a further sub stituent of the group consisting of alkyl, alkoxy, aryloxy, nitro or halogen, which dyestuffs yield when mixed with the usual substrata valuable orange to red to blue toblack color lakes and orange to red to blue to black dyeings fast to light when produced on the. fiber. I f

4;. As new compounds azodyestufis corre sponding probably to the general formula;

. X I s 7 0H o o-mnQ-o on.

wherein X and Y mean substituents of the group consisting of alkyl, alkoxy, aryloxy, nitro or halogen, which dyestuffs yield when mixed with the'usual substrata valuable orange to red to blue to black color lakes and orange to red to blue to black dyeings fast to light when produced on the fiber.

5. As new compounds azodyestufi's corresponding probably to the general formula:

wherein and meanjsubstituents of the,-

group consisting 0t alkyl,oxalkyl,"halogen and N0 which dyestufi's yield when mixed with the usual substrata valuable orange to red to blue to brownish color lakes and Y orange to red to blue to black dyeings fast to light when produced on the fiber.

6. As new compounds azodyestufl's corresponding probably to the general formula:

on o o-Nn-Qoon,

OH 0 O-NH-OO CH;

which dyestufl yield a clear red dyeing of a 7 very good fastness to light and kier boiling.

In testimony whereof, we afiix our signatures.

LEOPOLD LASKA. ARTHUR ZITSOHER. 

